I have every thing for my setup waiting in the floor of the garage, then my friend mentions a pop-off valve. I have an unopened wastegate actuator witha 6psi spring. I also have a btm and a bov. Do I really need a pop-off valve? I don't want to grenade my engine cause I don't have a spare any more. I need advice. Thanks

 

i would imagine hes referring to a BOV, and you said youve already got one, so it sounds like your all set

 

Just put a balloon on your tailpipe and start 'em up. I'm sure it will "POP" pretty quick!! JK

 

tell your buddy he shouldn't make up parts for cars.
then ask him if u should add in a "6 pak axle side lock anti break sensor, with a turbosuped 8X9 half exhaust valve tip"

 

sounds expensive

 

A pop-off valve is a real part, but I can't remember exactly what it does... just do a google search on it.

 

A pop-off valve is a real part so don't give your buddy too hard of a time because it can be a good thing to have, but it's not neccissary. Basically its a pressure relief valve that incase you overboost, it'll blow before you're headgasket or motor does. Let's say you're running 5psi of boost. You set your pop-off valve to 6 or 7 and if a vaccum/pressure line comes off the wastegate this valve will save your car from achieve insane boost levels which obviously has a good chance of saving the headgasket, or your piston rings. I think HKS makes an adjustable one...I'm not sure who else does tho.

 

A BOV prevents back pressure on a turbo. But if what spork said is right... That is bad ***! and where can I get one?

 

it also protects the engine when you close the throttle, the pressure builds up quick... The WG wont save it from overboosting momentarily